text: class LinkedList {
    constructor() {
      this.current = {};
    }
  
    add(value) {}
  
    remove() {}
  
    peek() {
      return this.current;
    }
  }
  
  class DoublyLinkedList {
    constructor() {}
  }
  
  module.exports = {
    LinkedList,
    DoublyLinkedList,
  };
  